Mupen Plus Next with Real N64 Controllers and real Rumble Pak

Hey everyone,

I have a weird and very specific problem that I can’t seem to fix.

I wanted to use real N64 Controllers with a real Rumble Pak in Retroarch Mupen Plus Next Core. I bought this n64 to usb adapter twice, so I can connect 4 n64 controllers:

I tested everything with the raphnet configuration software and rumble does indeed work fine. The first problem I encountered is that these are DInput controllers and Retroarch does not support rumble with Dinput. So what I did was downloading the XOutput software ( which turns the DInput into XInput controllers. I tested everything and again rumble works fine.

Now when I go ingame (Super Smash Bros, for example) rumble works on all controllers except for the controller that Retroarch maps as Player 1. There is still a tiny amount of rumble, but not at all like on the other controllers. When I map the non working controller to a different port (player 2, 3, 4), rumble works perfectly. So it’s not the controller that is broken or the rumble Pak or one of the adapters. It seems to be a software issue.

Does anyone have any idea why this might be happening?

To me with the xbox series gamepad detected and configured in the two nintendo 64 cores, activating rumble, the gamp does not vibrate. The rumble option is activated in all the options